| Business | Phone |
| Agriculture Trade Dept 2811 Agriculture Dr, Madison 53718 | (608) 224-4500 |
| Agriculture-Natural Resources 432 N Lake St, Madison 53706 | (608) 263-7320 |
| Animal Health Div 2811 Agriculture Dr, Madison 53718 | (608) 224-4872 |
| Food Safety Div 2811 Agriculture Dr, Madison 53718 | (608) 224-4700 |
| Laboratories Animal Health 6101 Mineral Point Rd, Madison 53705 | (608) 266-2465 |